code: def read_file(file_path: str, mode: str = "rb") -> Union[str, bytes]:
      with tf.io.gfile.GFile(file_path, mode) as f:
          return f.read()
  
file_path: mediapipe/mediapipe/model_maker/python/vision/gesture_recognizer/metadata_writer.py
imports: import dataclasses
  import os
  import tempfile
  from typing import Union
  import tensorflow
  from mediapipe.tasks.python.metadata.metadata_writers import metadata_writer
  from mediapipe.tasks.python.metadata.metadata_writers import model_asset_bundle_utils
label_desc: Use image node_id 1 for calling a global function with example usage: read_file(file_path, mode) and returns: f